Metal, particularly gold, recovery from adsorbed cyanide complex

Details Metal, particularly gold, recovery from adsorbed cyanide complex Metal, particularly gold, recovery from adsorbed cyanide complex

1974-10-29

1976-07-20

Vertiz, Oscar R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 35, 423150, 75118R, C01G 300, C01G 500, C01G 700, C01G 5300

Patent

active

039707377

ABSTRACT:
The invention provides a method of recovering transition or noble metal values, particularly gold and silver values, from a support having absorbed thereon the metal values in the form of an ionic complex, particularly a cyanide ionic complex, by desorbing the metal values with water of low cation concentration such as deionized or softened water. When the cation of the complex is an alkaline earth metal cation then the support is preferably subjected to a pre-treatment with an alkali metal salt solution to effect an exchange reaction before the desorption step.

REFERENCES:
patent: 2965441 (1960-12-01), Welton
Zadra et al., U.S. Bureau of Mines, R.I., 4843, 2/52, pp. 1, 3-5.

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